JPH0799769A - Linear pulse motor - Google Patents

Linear pulse motor

Info

Publication number
JPH0799769A
JPH0799769A JP5238362A JP23836293A JPH0799769A JP H0799769 A JPH0799769 A JP H0799769A JP 5238362 A JP5238362 A JP 5238362A JP 23836293 A JP23836293 A JP 23836293A JP H0799769 A JPH0799769 A JP H0799769A
Authority
JP
Japan
Prior art keywords
stator
mover
salient poles
small
axial direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5238362A
Other languages
Japanese (ja)
Other versions
JP3585130B2 (en
Inventor
Hirobumi Satomi
博文 里見
Takao Iwasa
孝夫 岩佐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oriental Motor Co Ltd
Original Assignee
Oriental Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oriental Motor Co Ltd filed Critical Oriental Motor Co Ltd
Priority to JP23836293A priority Critical patent/JP3585130B2/en
Priority to TW083108418A priority patent/TW268163B/zh
Priority to KR1019940023366A priority patent/KR0144316B1/en
Priority to CA002132491A priority patent/CA2132491C/en
Priority to US08/309,456 priority patent/US5629572A/en
Priority to CN94116445A priority patent/CN1110024A/en
Priority to EP94115047A priority patent/EP0645876B1/en
Priority to DE69402797T priority patent/DE69402797T2/en
Publication of JPH0799769A publication Critical patent/JPH0799769A/en
Priority to US08/772,280 priority patent/US5693989A/en
Application granted granted Critical
Publication of JP3585130B2 publication Critical patent/JP3585130B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Linear Motors (AREA)

Abstract

PURPOSE:To manufacture a stator core easily and to prevent extension in axial direction even if the number of phases is increased by forming the stator iron plates of the stator core by laminating and rotating them at a specific angle successively. CONSTITUTION:When an integer k is equal to 2 and the number of phases m is equal to 3, the number of stator salient poles, namely k.m, is equal to 6, a plurality of stator small teeth 17 are provided in axial direction on an inner-periphery surface, and stator coil windings; W1, W2,...W6 are wound around each. Then. the tip of one set of salient poles of a stator iron plate 30 has a small inner diameter and that of the other two sets of salient poles has a large inner diameter (m-1=3-1=2 for each). Also, by rotating and laminating the stator iron plate 30 at ant angle of 60 degrees each (360/k.m=360/6), a three-phase VR-type linear pulse motor is constituted, thus manufacturing the stator core easily and preventing extension in axial direction even if the number of phases is increased since each phase coil winding is laid out in circumferential direction.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、ＶＲ（可変レラクタン
ス）形のリニアパルスモータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a VR (variable reluctance) type linear pulse motor.

【０００２】[0002]

【従来の技術】従来、この種のモータとしては、特公平
５−１９２８２号公報（発明の名称：リニアアクチュエ
ータ）にシリンダ状のＶＲ形リニアパルスモータが開示
されている。前記公報によれば、このリニアパルスモー
タは、巻線が巻回された固定子と、該固定子に対して軸
方向に移動自在に支持された電機子とから成る。該固定
子は、複数個の磁極を有するセグメント（鉄板）とスペ
ーサとを交互に積層したもので、該磁極は前記巻線への
電流により交互にＮ極とＳ極に磁化されている。前記電
機子は棒状の非磁性の支持チューブ上に取付けられたリ
ングで、前記巻線に選択的に流される電流によって発生
する前記固定子と電機子とを通る磁束により、軸方向に
駆動制御される。2. Description of the Related Art Conventionally, as a motor of this type, a cylinder type VR linear pulse motor has been disclosed in Japanese Patent Publication No. 5-19282 (invention name: linear actuator). According to the above publication, this linear pulse motor is composed of a stator around which a winding is wound and an armature movably supported in the axial direction with respect to the stator. The stator is formed by alternately laminating segments (iron plates) having a plurality of magnetic poles and spacers, and the magnetic poles are alternately magnetized into N poles and S poles by the current to the winding. The armature is a ring mounted on a rod-shaped non-magnetic support tube, and is axially driven and controlled by a magnetic flux passing through the stator and the armature generated by an electric current selectively applied to the winding. It

【０００３】また、米国特許第５，０９３，５９６号公
報（発明の名称：結合形リニア・ロータリ直接駆動ステ
ップモータ（COMBINED LINEAR-ROTARY DIRECT DRIVE ST
EPMOTOR））には、シリンダ状の３相ＶＲ形リニアパル
スモータが開示されている。前記公報によれば、このリ
ニアパルスモータは、円筒状の可変レラクタンス形リニ
アステップモータ部分と、ハイブリッド永久磁石形ロー
タリステップモータ部分とを備え、それぞれ出力軸を共
通にして、ひとつのハウジング内に収容したものであ
る。US Pat. No. 5,093,596 (Title of Invention: COMBINED LINEAR-ROTARY DIRECT DRIVE ST)
EPMOTOR)) discloses a cylindrical 3-phase VR type linear pulse motor. According to the above publication, this linear pulse motor includes a cylindrical variable reluctance type linear step motor portion and a hybrid permanent magnet type rotary step motor portion, and the output shafts thereof are commonly housed in one housing. It was done.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、両者の
うち、前者のリニアパルスモータは、各相を構成する固
定子は軸方向に並べられており、多相化した場合、モー
タは軸方向に長くなるという問題点があった。However, in the former linear pulse motor of the two, the stators constituting each phase are arranged in the axial direction, and in the case of multiple phases, the motor is long in the axial direction. There was a problem that

【０００５】他方、後者のリニアパルスモータは、固定
子が固定子鉄板とスペーサ鉄板とを交互に積層した構成
になっており、固定子コアの製作にあたっては、２種類
の鉄板を交互に積層しなければならず、また固定子鉄板
は各突極の先端部をひとつおきに曲げ加工しなければな
らず、容易に固定子コアを製作することができないとい
う問題点があった。On the other hand, in the latter linear pulse motor, the stator has a structure in which a stator iron plate and a spacer iron plate are alternately laminated. When manufacturing a stator core, two types of iron plates are alternately laminated. In addition, the stator iron plate must be bent at every other tip of each salient pole, so that the stator core cannot be easily manufactured.

【０００６】本発明はかかる点に鑑みなされたもので、
その目的は前記問題点を解消し、その内周面に軸方向に
複数個の固定子小歯を形成しながら、固定子コアの製作
が容易で、しかも各相巻線を固定子コアの内周方向に配
置でき、多相化しても軸方向に長くならないＶＲ形リニ
アパルスモータを提供することにある。The present invention has been made in view of the above points,
The purpose is to solve the above-mentioned problems and to form a plurality of stator small teeth in the axial direction on the inner peripheral surface of the stator core. It is an object of the present invention to provide a VR type linear pulse motor which can be arranged in the circumferential direction and does not lengthen in the axial direction even if it has multiple phases.

【０００７】[0007]

【課題を解決するための手段】前記目的を達成するため
の本発明の構成は、内側に向って放射状に等ピッチ角度
で配設された複数個の突極を有するとともに、該突極の
内周面に軸方向に複数個の固定子小歯が形成された固定
子コアを有する固定子と、該固定子内に軸方向に移動自
在に支持されるとともに、外周面に前記固定子小歯に対
向して、軸方向に等ピッチで複数個の移動子小歯が形成
された移動子コアを有する移動子とを備えてなるリニア
パルスモータにおいて、次のとおりである。The structure of the present invention for achieving the above object has a plurality of salient poles radially arranged inward at equal pitch angles, and A stator having a stator core having a plurality of stator small teeth formed on the circumferential surface in the axial direction, and a stator movably supported in the stator in the axial direction, and the stator small teeth on the outer peripheral surface. And a moving element having a moving element core having a plurality of moving element small teeth formed at equal pitches in the axial direction facing each other.

【０００８】（１） 前記固定子コアは、該固定子コア
の固定子鉄板を所定角度で順次回転積層して形成される
とともに、ｋを１以上の整数、ｍを相数とするとき、該
固定子鉄板はｋｍ個の突極を有するとともに、前記移動
子と対向する前記突極の先端部が、前記移動子側からみ
て、内半径が小さい突極が１個、内半径の大きい突極が
（ｍ−１）個の順に並んで１組を形成し、その組がｋ組
存在するように構成され、前記回転積層する所定角度が
（３６０／ｋｍ）度であることを特徴とする。(1) The stator core is formed by sequentially laminating the stator iron plates of the stator core at a predetermined angle, and when k is an integer of 1 or more and m is the number of phases, The stator iron plate has km salient poles, and the tip of the salient pole facing the mover has one salient pole with a small inner radius and a salient pole with a large inner radius when viewed from the side of the mover. Are arranged in the order of (m-1) to form one set, and there are k sets, and the predetermined angle for the rotary lamination is (360 / km) degrees.

【０００９】（２） 前記固定子コアは、該固定子コア
の固定子鉄板を所定角度で順次回転積層して形成される
とともに、ｍを相数とするとき、該固定子鉄板は２ｍ個
の突極を有するとともに、前記移動子と対向する前記突
極の先端部が、前記移動子側からみて、内半径が小さい
突極が２個、内半径の大きい突極が（２ｍ−２）個の順
に並んで形成するように構成され、前記回転積層する所
定角度が（３６０／ｍ）度、または（１８０／ｍ）度で
あることを特徴とする。(2) The stator core is formed by sequentially rotating and laminating the stator iron plates of the stator core at a predetermined angle, and when m is the number of phases, the stator iron plates are 2 m in number. The salient pole has a salient pole and the tip of the salient pole facing the mover has two salient poles having a small inner radius and (2m-2) salient poles having a large inner radius when viewed from the mover side. It is characterized in that they are formed side by side in the order of, and the predetermined angle of the rotary lamination is (360 / m) degrees or (180 / m) degrees.

【００１０】（３） 前記固定子コアは、該固定子コア
の固定子鉄板を所定角度で順次回転積層して形成される
とともに、ｍを相数とするとき、ｍは４以上の値であっ
て、該固定子鉄板はｍ個の突極を有するとともに、前記
移動子と対向する前記突極の先端部が、前記移動子側か
らみて、内半径が小さい突極が２個、内半径の大きい突
極が（ｍ−２）個の順に並んで形成するように構成さ
れ、前記回転積層する所定角度が（３６０／ｍ）度であ
ることを特徴とする。(3) The stator core is formed by sequentially laminating the stator iron plates of the stator core at a predetermined angle, and when m is the number of phases, m is a value of 4 or more. The stator iron plate has m salient poles, and the tip of the salient pole facing the mover has two salient poles with a small inner radius when viewed from the side of the mover. It is characterized in that large salient poles are formed side by side in the order of (m-2), and the predetermined angle for the rotary lamination is (360 / m) degrees.

【００１１】[0011]

【作用】前記のように構成されたリニアパルスモータ
は、一種類の固定子鉄板を所定の角度で順次回転積層す
るという、回転型ステッピングモータで使われているコ
ア製作技術が使用できるため、その内周面に軸方向に複
数個の固定子小歯を形成しながら、固定子コアを容易に
製作できる。In the linear pulse motor constructed as described above, the core manufacturing technique used in rotary stepping motors, in which one type of stator iron plate is sequentially laminated at a predetermined angle, can be used. The stator core can be easily manufactured while forming a plurality of stator small teeth in the axial direction on the inner peripheral surface.

【００１２】[0012]

【実施例】以下、図面に基づいて本発明の好適な実施例
を例示的に詳しく説明する。図１は、本発明のリニアパ
ルスモータの一実施例を示す縦断面図、図２は、図１の
II−II線による横断面図である。本実施例は、整数ｋお
よび相数ｍの各数値が、ｋ＝２，ｍ＝３とした場合を示
し、従って、固定子突極の数はｋ・ｍ＝６個である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be exemplarily described in detail below with reference to the drawings. 1 is a vertical sectional view showing an embodiment of a linear pulse motor of the present invention, and FIG.
It is a cross-sectional view taken along the line II-II. The present embodiment shows a case where the numerical values of the integer k and the number of phases m are k = 2 and m = 3. Therefore, the number of stator salient poles is k · m = 6.

【００１３】図１および図２において、固定子１の固定
子コア１０に配設された６個の突極１１，１２，１３，
……１６には、その内周面に軸方向に複数個の固定子小
歯１７（歯先部１７ａと歯底部１７ｂ）が配設されてい
る。また、これら６個の突極１１，１２，１３，……１
６のそれぞれに、固定子巻線Ｗ１，Ｗ２，Ｗ３，……Ｗ
６が各別に巻回されている。該固定子コア１０は、その
両端部をエンドブラケット１８と１９により、図示しな
いネジ等でネジ止めすることにより支持される。In FIG. 1 and FIG. 2, six salient poles 11, 12, 13, arranged on the stator core 10 of the stator 1,
The plurality of stator small teeth 17 (tooth top portion 17a and tooth bottom portion 17b) are axially arranged on the inner peripheral surface of the gear. In addition, these six salient poles 11, 12, 13, ... 1
In each of the six, stator windings W1, W2, W3, ... W
6 is wound separately. The both ends of the stator core 10 are supported by the end brackets 18 and 19 by screwing them with screws (not shown).

【００１４】一方、固定子１内にある移動子２は、前記
エンドブラケット１８と１９により、軸受２０ａ，２０
ｂを介して軸方向に移動自在に支持される。そして、該
移動子２には、軸２１上に磁極コア２２が配設されてお
り、また該磁極コア２２の外周面には、軸方向に複数個
の移動子小歯２４（歯先部２４ａと歯底部２４ｂ）が配
設されている。On the other hand, the moving element 2 in the stator 1 has bearings 20a, 20 by the end brackets 18 and 19.
It is supported movably in the axial direction via b. A magnetic pole core 22 is disposed on the shaft 21 of the moving element 2, and a plurality of moving element small teeth 24 (tooth tips 24a are formed on the outer peripheral surface of the magnetic pole core 22 in the axial direction. And a tooth bottom portion 24b).

【００１５】前記磁極コア２２は、該歯先部２４ａを形
成する外径の大きい移動子鉄板２５ａが１枚，歯底部２
４ｂを形成する外径の小さい移動子鉄板２５ｂが２枚の
順で、積層されて形成されている。なお、該磁極コア２
２は前記移動子鉄板２５ａ，２５ｂの積層の代わりに、
鉄系材などの磁性材から切削加工等によっても、勿論製
作可能である。The magnetic pole core 22 has one moving iron plate 25a having a large outer diameter which forms the tooth tip portion 24a and the tooth bottom portion 2.
The moving element iron plates 25b having a small outer diameter forming 4b are formed by laminating two sheets in this order. The magnetic pole core 2
2 is, instead of stacking the mover iron plates 25a and 25b,
Of course, a magnetic material such as an iron material can also be manufactured by cutting or the like.

【００１６】図３は、固定子コア１０を形成している固
定子鉄板３０の一例を示したものである。図３におい
て、固定子鉄板３０の突極Ｐ１とＰ４とは、その先端部
が内半径の小さい突極（各１個）であり、固定子小歯１
７の歯先部１７ａを形成する突極である。また、突極Ｐ
２，Ｐ３とＰ５，Ｐ６とは、その先端部が内半径の大き
い突極（各、ｍ−１＝３−１＝２個）であり、固定子小
歯１７の歯底部１７ｂを形成する突極である。図３は、
整数ｋ＝２，相数ｍ＝３の場合を示している。すなわ
ち、これらの突極Ｐ１，Ｐ２，Ｐ３の組と、突極Ｐ４，
Ｐ５，Ｐ６の組とが、固定子コア１０の円周方向に順に
並んで２組存在することになる。FIG. 3 shows an example of the stator iron plate 30 forming the stator core 10. In FIG. 3, the salient poles P1 and P4 of the stator iron plate 30 are salient poles (one each) whose tip portion has a small inner radius, and the stator small teeth 1
7 is a salient pole that forms the tooth tip 17a of No. 7. Also, salient pole P
2, P3 and P5, P6 are salient poles (m-1 = 3-1 = 2 pieces) each having a large inner radius at their tips, and form a tooth bottom 17b of the stator small tooth 17. It is a pole. Figure 3
The case where the integer k = 2 and the number of phases m = 3 is shown. That is, the set of these salient poles P1, P2, P3 and salient pole P4
Two sets of P5 and P6 are arranged side by side in the circumferential direction of the stator core 10.

【００１７】図４は、該固定子鉄板３０を角度６０（３
６０／ｋ・ｍ＝３６０／６）度ずつ回転しながら積層し
たときに形成される突極１１，１２，１３，……１６の
固定子小歯１７の様子を移動子２側からみたものであ
る。ハッチングのある部分が歯先部１７ａを示し、ハッ
チングのない部分が歯底部１７ｂを示す。固定子鉄板３
０の厚さをｔ0 とすると、回転積層することにより、各
突極１１，１２，１３……１６には歯ピッチがｍ・
ｔ0 ，すなわち３ｔ0 ，歯厚がｔ0 の固定子小歯１７が
形成される。しかも突極１１を基準にしたとき、突極１
２の小歯１７のずれは歯ピッチの１／３，突極１３の小
歯１７のずれは歯ピッチの２／３，突極１４の小歯１７
のずれは歯ピッチの３／３，すなわち０，突極１５の小
歯１７のずれは歯ピッチの１／３，突極１６の小歯１７
のずれは歯ピッチの２／３である。FIG. 4 shows the stator iron plate 30 with an angle 60 (3
The state of the stator small teeth 17 of the salient poles 11, 12, 13, .. is there. The hatched portion indicates the tooth tip portion 17a, and the non-hatched portion indicates the tooth bottom portion 17b. Stator iron plate 3
Assuming that the thickness of 0 is t 0 , the salient poles 11, 12, 13 ... 16 have a tooth pitch of m ·
t 0, i.e. 3t 0, stator teeth 17 of the tooth thickness t 0 is formed. Moreover, when the salient pole 11 is used as a reference, the salient pole 1
The deviation of the two small teeth 17 is 1/3 of the tooth pitch, and the deviation of the small teeth 17 of the salient pole 13 is 2/3 of the tooth pitch, and the small teeth 17 of the salient pole 14.
The deviation is 3/3 of the tooth pitch, that is, 0, and the deviation of the small tooth 17 of the salient pole 15 is 1/3 of the tooth pitch, and the small tooth 17 of the salient pole 16.
The deviation is 2/3 of the tooth pitch.

【００１８】したがって、図５のように巻線Ｗ１とＷ４
を結線してＡ相、巻線Ｗ２とＷ５を結線してＢ相、巻線
Ｗ３とＷ６を結線してＣ相とすることにより３相のＶＲ
形リニアパルスモータを構成することができる。このと
きのステップごとの基本移動量は歯ピッチの１／ｍすな
わち、ｔ0 となる。なお、図５の各巻線Ｗ１，Ｗ２，Ｗ
３，……６に付された●は巻線の向きを表しており、例
えば、コモンからＡ相に向かって電流を流すと、突極１
１はＮ極に、突極１４はＳ極に励磁されることを意味し
ている。Therefore, as shown in FIG. 5, the windings W1 and W4 are
3 phase VR by connecting to the A phase, connecting the windings W2 and W5 to the B phase, and connecting the windings W3 and W6 to the C phase.
A linear pulse motor can be constructed. At this time, the basic movement amount for each step is 1 / m of the tooth pitch, that is, t 0 . Each winding W1, W2, W in FIG.
The circles attached to 3, ... 6 represent the direction of the winding. For example, when a current flows from the common to the A phase, the salient pole 1
1 means that the N pole is excited, and salient pole 14 is excited by the S pole.

【００１９】図６は、前記固定子コア１０を形成してい
る前記固定子鉄板３０の他の例の固定子鉄板３１を示し
たもので、相数ｍは前記同様にｍ＝３の場合を示す。FIG. 6 shows a stator iron plate 31 which is another example of the stator iron plate 30 forming the stator core 10. The number of phases m is the same as the above when m = 3. Show.

【００２０】図６において、前記固定子鉄板３１は、２
ｍ＝６個の突極Ｐ１１，Ｐ１２，Ｐ１３，……Ｐ１６を
有するとともに、突極Ｐ１１，Ｐ１２は、その先端部が
内半径の小さい２個の突極であり、固定子小歯１７の歯
先部１７ａを形成する突極である。またＰ１３，Ｐ１
４，Ｐ１５，Ｐ１６は、その先端部が内半径の大きい
（２ｍ−２）、すなわち４個の突極であり、固定子小歯
１７の歯底部１７ｂを形成する突極である。In FIG. 6, the stator iron plate 31 is
m = 6 salient poles P11, P12, P13, ... P16, and the salient poles P11, P12 are two salient poles whose tip portions have a small inner radius, and are teeth of the stator small tooth 17. It is a salient pole that forms the tip portion 17a. Also P13, P1
4, P15, P16 are the salient poles whose tip portions have a large inner radius (2m-2), that is, four salient poles, and which form the tooth bottoms 17b of the stator small teeth 17.

【００２１】図７は、該固定子鉄板３１を角度１２０
（３６０／ｍ＝３６０／３）度ずつ回転しながら積層し
たときに形成される突極１１，１２，１３，……１６の
固定子小歯１７の様子を移動子側からみたものである。
図４の場合と同様に、ハッチングのある部分が歯先部１
７ａを示し、ハッチングのない部分が歯底部１７ｂを示
す。固定子鉄板３１の厚さをｔ0 とすると、回転積層す
ることにより各突極１１，１２，１３，……１６には歯
ピッチｍｔ0 ，すなわち３ｔ0 ，歯厚がｔ0 の固定子小
歯１７が形成される。しかも突極１１を基準としたと
き、突極１２の小歯のずれはゼロ、突極１３と突極１４
の小歯のずれは歯ピッチの１／３、突極１５と１６の小
歯のずれは歯ピッチの２／３である。FIG. 7 shows the stator iron plate 31 with an angle of 120.
The state of the stator small teeth 17 of the salient poles 11, 12, 13, ... 16 formed when the layers are laminated while rotating by (360 / m = 360/3) degrees is viewed from the mover side.
As in the case of FIG. 4, the hatched portion is the tip 1
7a, and the portion without hatching shows the tooth bottom 17b. When the thickness of the stator iron plate 31 and t 0, each salient pole 11, 12 and 13 by rotating laminated, tooth pitch mt 0 to ...... 16, i.e. 3t 0, stator small teeth thickness t 0 Teeth 17 are formed. Moreover, when the salient pole 11 is used as a reference, the deviation of the small teeth of the salient pole 12 is zero, and the salient pole 13 and the salient pole 14
The deviation of the small teeth of 1 is 1/3 of the tooth pitch, and the deviation of the small teeth of the salient poles 15 and 16 is 2/3 of the tooth pitch.

【００２２】したがって、図８のように隣合う各２個の
巻線Ｗ１，Ｗ２；Ｗ３，Ｗ４；Ｗ５，Ｗ６を互いに異極
性に接続して、それぞれＡ相，Ｂ相，Ｃ相とすることに
より３相のＶＲ形リニアパルスモータを構成することが
できる。Therefore, as shown in FIG. 8, two adjacent windings W1, W2; W3, W4; W5, W6 are connected to each other with different polarities to form A phase, B phase, and C phase, respectively. Thus, a 3-phase VR type linear pulse motor can be constructed.

【００２３】次いで、前記固定子コア１０が図６の前記
固定子鉄板３１により形成されるときで、相数ｍがｍ＝
６の場合を示す。この場合、突極の数はｍ，すなわち６
個である。Next, when the stator core 10 is formed by the stator iron plate 31 of FIG. 6, the number of phases m is m =
The case of 6 is shown. In this case, the number of salient poles is m, that is, 6
It is an individual.

【００２４】図９は、該固定子鉄板３１を角度６０（３
６０／ｍ＝３６０／６）度ずつ回転しながら積層したと
きに形成される突極１１，１２，１３，……１６の固定
子小歯１７の様子を移動子側からみたものである。図４
の場合と同様に、ハッチングのある部分が歯先部１７ａ
を示し、ハッチングのない部分が歯底部１７ｂを示す。
固定子鉄板３１の厚さをｔ0 とすると、回転積層するこ
とにより各突極１１，１２，１３，……１６には歯ピッ
チｍｔ0 ，すなわち６ｔ0 ，歯厚が２ｔ0 の固定子小歯
１７が形成される。しかも突極１１を基準としたとき、
突極１２の小歯のずれは歯ピッチの１／６，突極１３の
小歯のずれは歯ピッチの２／６，突極１４の小歯のずれ
は歯ピッチの３／６，突極１５の小歯のずれは歯ピッチ
の４／６，突極１６の小歯のずれは歯ピッチの５／６で
ある。FIG. 9 shows the stator iron plate 31 with an angle 60 (3
The stator small teeth 17 of the salient poles 11, 12, 13, ... 16 formed when laminated while rotating by 60 / m = 360/6) are viewed from the mover side. Figure 4
As in the case of, the hatched portion is the tooth tip 17a.
And the portion without hatching shows the tooth bottom portion 17b.
Assuming that the thickness of the stator iron plate 31 is t 0 , the salient poles 11, 12, 13, ... 16 have a tooth pitch mt 0 , that is, 6 t 0 , and a stator small with a tooth thickness of 2 t 0 by rotating and stacking. Teeth 17 are formed. Moreover, when the salient pole 11 is used as a reference,
The small tooth deviation of the salient pole 12 is 1/6 of the tooth pitch, the small tooth deviation of the salient pole 13 is 2/6 of the tooth pitch, and the small tooth deviation of the salient pole 14 is 3/6 of the tooth pitch, and the salient pole. The deviation of the small teeth of 15 is 4/6 of the tooth pitch, and the deviation of the small teeth of the salient pole 16 is 5/6 of the tooth pitch.

【００２５】したがって、図１０のように、各巻線Ｗ
１，Ｗ２，Ｗ３，……Ｗ６を結線することにより、６相
のＶＲ形リニアパルスモータを構成することができる。Therefore, as shown in FIG. 10, each winding W
By connecting 1, W2, W3, ... W6, a 6-phase VR linear pulse motor can be constructed.

【００２６】また、図１１のように、巻線Ｗ１，Ｗ２，
Ｗ３，……Ｗ６を結線することにより、３相のＶＲ形リ
ニアパルスモータに構成することも可能である。この場
合、相数ｍはｍ＝３となり、前記固定子鉄板３１は角度
６０（１８０／ｍ＝１８０／３）度ずつ回転しながら積
層され、前記６相のＶＲ形リニアパルスモータの場合と
同一角度になる。Further, as shown in FIG. 11, the windings W1, W2,
By connecting W3, ..., W6, it is possible to construct a three-phase VR type linear pulse motor. In this case, the number of phases m is m = 3, the stator iron plates 31 are stacked while rotating by an angle of 60 (180 / m = 180/3) degrees, which is the same as in the case of the 6-phase VR linear pulse motor. It becomes an angle.

【００２７】なお、本発明の技術は前記実施例における
技術に限定されるものではなく、同様な機能を果す他の
態様の手段によってもよく、また本発明の技術は前記構
成の範囲内において種々の変更，付加が可能である。Note that the technique of the present invention is not limited to the technique in the above-described embodiment, and may be implemented by means of another aspect having a similar function, and the technique of the present invention can be variously modified within the scope of the above configuration. Can be changed or added.

【００２８】[0028]

【発明の効果】以上の説明から明らかなように、本発明
のリニアパルスモータによれば、前記固定子コアは、そ
の内周面に軸方向に複数個の固定子小歯を形成しなが
ら、該固定子コアの固定子鉄板を所定の角度で順次回転
積層することにより形成できる。したがって回転型ステ
ッピングモータで使われているコア製造技術が使用でき
るため、固定子コアを容易にしかも低コストで製作する
ことができる。また、各相巻線は前記固定子コアの円周
方向に配置されるため、多相化しても軸方向に長くなら
ないＶＲ形リニアパルスモータを提供することができ
る。As is clear from the above description, according to the linear pulse motor of the present invention, the stator core is formed with a plurality of stator small teeth on its inner peripheral surface in the axial direction. It can be formed by sequentially laminating the stator iron plates of the stator core at a predetermined angle. Therefore, since the core manufacturing technique used in the rotary stepping motor can be used, the stator core can be manufactured easily and at low cost. Further, since the respective phase windings are arranged in the circumferential direction of the stator core, it is possible to provide a VR type linear pulse motor which does not become long in the axial direction even if the phase is changed.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明のリニアパルスモータの一実施例を示す
縦断面図である。FIG. 1 is a vertical sectional view showing an embodiment of a linear pulse motor of the present invention.

【図２】図１のII−II線による横断面図である。FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

【図３】固定子コアを形成する固定子鉄板の平面図であ
る。FIG. 3 is a plan view of a stator iron plate forming a stator core.

【図４】図３の固定子鉄板を所定角回転積層したときに
形成される固定子小歯部を移動子側から見た展開図であ
る。FIG. 4 is a development view of a stator tooth portion formed when the stator iron plates of FIG. 3 are rotationally laminated at a predetermined angle, as viewed from the mover side.

【図５】固定子巻線の結線図である。FIG. 5 is a wiring diagram of a stator winding.

【図６】固定子コアを形成する他の固定子鉄板の平面図
である。FIG. 6 is a plan view of another stator iron plate forming a stator core.

【図７】図６の固定子鉄板を１２０度回転積層したとき
に形成される固定子小歯部を移動子側から見た展開図で
ある。7 is a development view of a stator small tooth portion formed when the stator iron plates of FIG. 6 are rotated and laminated by 120 degrees, as viewed from the side of a mover.

【図８】図７における３相リニアパルスモータの固定子
巻線の結線図である。8 is a wiring diagram of a stator winding of the three-phase linear pulse motor shown in FIG.

【図９】図６の固定子鉄板を６０度回転積層したときに
形成される固定子小歯部を移動子側から見た展開図であ
る。9 is a development view of a stator small tooth portion formed when the stator iron plates of FIG. 6 are rotated and laminated by 60 degrees, as viewed from the mover side.

【図１０】図９における６相リニアパルスモータの固定
子巻線の結線図である。10 is a connection diagram of a stator winding of the 6-phase linear pulse motor shown in FIG.

【図１１】図９における３相リニアパルスモータの固定
子巻線の結線図である。11 is a wiring diagram of a stator winding of the three-phase linear pulse motor shown in FIG.

【符号の説明】[Explanation of symbols]

１ 固定子 ２ 移動子 １０ 固定子コア １１，１２，１３，……１６ 突極 １７ 固定子小歯 １７ａ 歯先部 １７ｂ 歯底部 ２４ 移動子小歯 ２４ａ 歯先部 ２４ｂ 歯底部 ３０，３１ 固定子鉄板 ｋ 整数 ｍ 相数 Ｐ１，Ｐ２，Ｐ３，……Ｐ６，Ｐ１１，Ｐ１２，Ｐ１
３，……Ｐ１６ 突極ｔ0 固定子鉄板の厚さ Ｗ１，Ｗ２，Ｗ３，……Ｗ６ 巻線DESCRIPTION OF SYMBOLS 1 stator 2 mover 10 stator core 11, 12, 13, ... 16 salient pole 17 stator small tooth 17a tooth tip 17b tooth bottom 24 moving child tooth 24a tooth tip 24b tooth bottom 30 and 31 stator Iron plate k Integer m Number of phases P1, P2, P3, ... P6, P11, P12, P1
3, ... P16 salient pole t 0 Stator iron plate thickness W1, W2, W3, ... W6 Winding

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 内側に向って放射状に等ピッチ角度で配
設された複数個の突極を有するとともに、該突極の内周
面に軸方向に複数個の固定子小歯が形成された固定子コ
アを有する固定子と、該固定子内に軸方向に移動自在に
支持されるとともに、外周面に前記固定子小歯に対向し
て、軸方向に等ピッチで複数個の移動子小歯が形成され
た移動子コアを有する移動子とを備えてなるリニアパル
スモータにおいて、 前記固定子コアは、該固定子コアの固定子鉄板を所定角
度で順次回転積層して形成されるとともに、ｋを１以上
の整数、ｍを相数とするとき、該固定子鉄板はｋｍ個の
突極を有するとともに、前記移動子と対向する前記突極
の先端部が、前記移動子側からみて、内半径が小さい突
極が１個、内半径の大きい突極が（ｍ−１）個の順に並
んで１組を形成し、その組がｋ組存在するように構成さ
れ、前記回転積層する所定角度が（３６０／ｋｍ）度で
あることを特徴とするリニアパルスモータ。1. A plurality of salient poles radially arranged inward at equal pitch angles are provided, and a plurality of stator small teeth are axially formed on an inner peripheral surface of the salient poles. A stator having a stator core, and a plurality of mover small elements that are supported in the stator so as to be movable in the axial direction and that face the stator small teeth on the outer peripheral surface at equal pitches in the axial direction. In a linear pulse motor comprising a mover having a mover core with teeth formed thereon, the stator core is formed by sequentially rotating and laminating stator iron plates of the stator core at a predetermined angle, When k is an integer of 1 or more and m is the number of phases, the stator iron plate has km salient poles, and the tip of the salient pole facing the mover is viewed from the mover side, One salient pole with a small inner radius and (m-1) salient poles with a large inner radius in this order Linear pulse motor, wherein the Nde form a set, is configured such that the set is present k sets a predetermined angle to the rotating lamination is (360 / km) degrees. 【請求項２】 内側に向って放射状に等ピッチ角度で配
設された複数個の突極を有するとともに、該突極の内周
面に軸方向に複数個の固定子小歯が形成された固定子コ
アを有する固定子と、該固定子内に軸方向に移動自在に
支持されるとともに、外周面に前記固定子小歯に対向し
て、軸方向に等ピッチで複数個の移動子小歯が形成され
た移動子コアを有する移動子とを備えてなるリニアパル
スモータにおいて、 前記固定子コアは、該固定子コアの固定子鉄板を所定角
度で順次回転積層して形成されるとともに、ｍを相数と
するとき、該固定子鉄板は２ｍ個の突極を有するととも
に、前記移動子と対向する前記突極の先端部が、前記移
動子側からみて、内半径が小さい突極が２個、内半径の
大きい突極が（２ｍ−２）個の順に並んで形成するよう
に構成され、前記回転積層する所定角度が（３６０／
ｍ）度、または（１８０／ｍ）度であることを特徴とす
るリニアパルスモータ。2. A plurality of salient poles radially arranged inward at equal pitch angles are provided, and a plurality of stator small teeth are axially formed on the inner peripheral surface of the salient poles. A stator having a stator core, and a plurality of mover small elements that are supported in the stator so as to be movable in the axial direction and that face the stator small teeth on the outer peripheral surface at equal pitches in the axial direction. In a linear pulse motor comprising a mover having a mover core with teeth formed thereon, the stator core is formed by sequentially rotating and laminating stator iron plates of the stator core at a predetermined angle, When m is the number of phases, the stator iron plate has 2m salient poles, and the tip end of the salient pole facing the mover has a salient pole with a small inner radius when viewed from the mover side. Two salient poles with a large inner radius are formed side by side in the order of (2m-2). Is configured, the predetermined angle of said rotary lamination (360 /
m) or (180 / m) degrees. 【請求項３】 内側に向って放射状に等ピッチ角度で配
設された複数個の突極を有するとともに、該突極の内周
面に軸方向に複数個の固定子小歯が形成された固定子コ
アを有する固定子と、該固定子内に軸方向に移動自在に
支持されるとともに、外周面に前記固定子小歯に対向し
て、軸方向に等ピッチで複数個の移動子小歯が形成され
た移動子コアを有する移動子とを備えてなるリニアパル
スモータにおいて、 前記固定子コアは、該固定子コアの固定子鉄板を所定角
度で順次回転積層して形成されるとともに、ｍを相数と
するとき、ｍは４以上の値であって、該固定子鉄板はｍ
個の突極を有するとともに、前記移動子と対向する前記
突極の先端部が、前記移動子側からみて、内半径が小さ
い突極が２個、内半径の大きい突極が（ｍ−２）個の順
に並んで形成するように構成され、前記回転積層する所
定角度が（３６０／ｍ）度であることを特徴とするリニ
アパルスモータ。3. A plurality of salient poles arranged radially inward at equal pitch angles, and a plurality of stator small teeth formed in the axial direction on the inner peripheral surface of the salient poles. A stator having a stator core, and a plurality of mover small elements that are supported in the stator so as to be movable in the axial direction and that face the stator small teeth on the outer peripheral surface at equal pitches in the axial direction. In a linear pulse motor comprising a mover having a mover core with teeth formed thereon, the stator core is formed by sequentially rotating and laminating stator iron plates of the stator core at a predetermined angle, When m is the number of phases, m is a value of 4 or more, and the stator iron plate has m
The salient pole has two salient poles with a small inner radius and a large salient pole with a large inner radius (m-2). ) A linear pulse motor configured so as to be formed in a line in the order of the above, and the predetermined angle for the rotational lamination is (360 / m) degrees.
JP23836293A 1993-09-24 1993-09-24 Linear pulse motor Expired - Fee Related JP3585130B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP23836293A JP3585130B2 (en) 1993-09-24 1993-09-24 Linear pulse motor
TW083108418A TW268163B (en) 1993-09-24 1994-09-13
KR1019940023366A KR0144316B1 (en) 1993-09-24 1994-09-15 Linear pulse motor
CA002132491A CA2132491C (en) 1993-09-24 1994-09-20 Linear pulse motor
US08/309,456 US5629572A (en) 1993-09-24 1994-09-22 Linear pulse motor
CN94116445A CN1110024A (en) 1993-09-24 1994-09-23 Linear pulse motor
EP94115047A EP0645876B1 (en) 1993-09-24 1994-09-23 Linear pulse motor
DE69402797T DE69402797T2 (en) 1993-09-24 1994-09-23 Linear stepper motor
US08/772,280 US5693989A (en) 1993-09-24 1996-12-20 Linear pulse motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23836293A JP3585130B2 (en) 1993-09-24 1993-09-24 Linear pulse motor

Publications (2)

Publication Number Publication Date
JPH0799769A true JPH0799769A (en) 1995-04-11
JP3585130B2 JP3585130B2 (en) 2004-11-04

Family

ID=17029065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23836293A Expired - Fee Related JP3585130B2 (en) 1993-09-24 1993-09-24 Linear pulse motor

Country Status (8)

Country Link
US (2) US5629572A (en)
EP (1) EP0645876B1 (en)
JP (1) JP3585130B2 (en)
KR (1) KR0144316B1 (en)
CN (1) CN1110024A (en)
CA (1) CA2132491C (en)
DE (1) DE69402797T2 (en)
TW (1) TW268163B (en)

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US5629572A (en) 1997-05-13
CA2132491C (en) 1997-10-07
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EP0645876B1 (en) 1997-04-23
TW268163B (en) 1996-01-11
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US5693989A (en) 1997-12-02
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EP0645876A1 (en) 1995-03-29
DE69402797T2 (en) 1997-08-07

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